排序方式： 共有10条查询结果，搜索用时 62 毫秒
1
1.
Roop Kishore Ashish Dwivedi Raghuvir Singh R. K. Naresh Vineet Kumar Priyanka Bankoti Dinesh Kumar Sharma Nishant Yadav 《Paddy and Water Environment》2017,15(1):49-58
Weeds caused serious problem on yield reduction of basmati rice worldwide. Losses caused by weeds varied from one country to another, depending on the presence of dominant weeds and the control methods practiced by farmers; therefore, suitable plant population and weed management practices should be adopted. Keeping these in mind, a field experiment was carried out during kharif seasons of 2009 and 2010 at crop Research Centre of SVPUA&T, Meerut, India comprising 4 planting geometries, viz. 20, 30, 40, and 50 hills m?2 as main plot factor, and 5 weed management practices (Butachlor @ 1.0 kg ha?1, Butachlor @ 1.0 kg ha?1 fb (followed by) one hand weeding, Butachlor @ 1.0 kg ha?1 fb Almix @ 4 g ha?1, two hand weedings and weedy check) in a split plot design with 3 replications. Experimental results revealed that plant population of 50 hills m?2 proved superior over that of 20 hills m?2 in respect of weed density, weed dry weight, number of tillers m?2, yield attributes, grain, straw, and biological yields. The maximum grain yield (29.00 and 31.00 q ha?1) and straw yield (51.30 and 52.50 q ha?1) were recorded in 50 hills m?2 followed by 40 hills m?2 during 2009 and 2010, respectively. In respect of nitrogen, phosphorus, and potassium removal, a reverse trend was observed: the highest in 20 hills m?2 followed by 30, 40, and 50 hills m?2. As far as the weed management practices are concerned, both chemical and mechanical methods of weed control were found superior over weedy check. The lowest weed density, dry weight, and highest weed control efficiency, maximum length of panicle?1, number of panicle (m2), and 1000-grain weight and grain yield of 30.40 and 32.60 q ha?1 were recorded with two hand weedings which was at par with Butachlor @ 1.0 kg ha?1 fb one hand weeding over rest of the weed management practices. 相似文献
2.
3.
Bettegowda C Agrawal N Jiao Y Sausen M Wood LD Hruban RH Rodriguez FJ Cahill DP McLendon R Riggins G Velculescu VE Oba-Shinjo SM Marie SK Vogelstein B Bigner D Yan H Papadopoulos N Kinzler KW 《Science (New York, N.Y.)》2011,333(6048):1453-1455
Oligodendrogliomas are the second most common malignant brain tumor in adults and exhibit characteristic losses of chromosomes 1p and 19q. To identify the molecular genetic basis for this alteration, we performed exomic sequencing of seven tumors. Among other changes, we found that the CIC gene (homolog of the Drosophila gene capicua) on chromosome 19q was somatically mutated in six cases and that the FUBP1 gene [encoding far-upstream element (FUSE) binding protein] on chromosome 1p was somatically mutated in two tumors. Examination of 27 additional oligodendrogliomas revealed 12 and 3 more tumors with mutations of CIC and FUBP1, respectively, 58% of which were predicted to result in truncations of the encoded proteins. These results suggest a critical role for these genes in the biology and pathology of oligodendrocytes. 相似文献
4.
Mitra Surabhi Debnath Prasenjit Rai Richa Srivastava Nishant Rao Govind Pratap Baranwal Virendra Kumar 《European journal of plant pathology / European Foundation for Plant Pathology》2022,163(4):907-922
European Journal of Plant Pathology - Symptoms of bunchy top, little leaf, leaf chlorosis with chlorotic streaks, leaf necrosis and stunted growth were noticed in two banana cultivars, Champa and... 相似文献
5.
Kumar Rakesh Gupta I. D. Verma Archana Kumari Ragini Verma Nishant 《Tropical animal health and production》2017,49(5):1059-1063
Tropical Animal Health and Production - Heat shock proteins (HSPs) act as molecular chaperones which are preferentially transcribed in response to severe perturbations of the cellular homeostasis... 相似文献
6.
Akhouri Nishant Bhanu Mahendra Narain Singh Kartikeya Srivastava 《Plant Breeding》2019,138(2):202-206
Six intervarietal crosses involving two resistant and three susceptible genotypes of mungbean were attempted with the objectives to determine the mode of inheritance of gene‐specific Mungbean Yellow Mosaic Virus (MYMV) resistance. An infector row technique along with artificial inoculation was used for evaluating parents, F1, F2 and F3 plants for MYMV resistance. Disease scoring for MYMV indicated that F1s were highly susceptible as were the susceptible parents while resistant parent exhibited resistant reaction. The F2 progeny segregated in the ratio of 9 S:3 MS:3 MR:1 R suggesting that the resistance was governed by digenic recessive genes (rm1 and rm2). When one gene (rm1) was present in the homozygous recessive condition in different plants, it conferred moderately susceptible (MS) reaction, whereas when other gene (rm2) was in homozygous condition, moderately resistant (MR) reaction was obvious. When both genes (rm1 and rm2) were present together in the homozygous recessive condition, resistant reaction (R) was observed. The F2 segregation explained on the basis of phenotypic expression was further confirmed by F3 segregation. 相似文献
7.
Agrawal N Frederick MJ Pickering CR Bettegowda C Chang K Li RJ Fakhry C Xie TX Zhang J Wang J Zhang N El-Naggar AK Jasser SA Weinstein JN Treviño L Drummond JA Muzny DM Wu Y Wood LD Hruban RH Westra WH Koch WM Califano JA Gibbs RA Sidransky D Vogelstein B Velculescu VE Papadopoulos N Wheeler DA Kinzler KW Myers JN 《Science (New York, N.Y.)》2011,333(6046):1154-1157
Head and neck squamous cell carcinoma (HNSCC) is the sixth most common cancer worldwide. To explore the genetic origins of this cancer, we used whole-exome sequencing and gene copy number analyses to study 32 primary tumors. Tumors from patients with a history of tobacco use had more mutations than did tumors from patients who did not use tobacco, and tumors that were negative for human papillomavirus (HPV) had more mutations than did HPV-positive tumors. Six of the genes that were mutated in multiple tumors were assessed in up to 88 additional HNSCCs. In addition to previously described mutations in TP53, CDKN2A, PIK3CA, and HRAS, we identified mutations in FBXW7 and NOTCH1. Nearly 40% of the 28 mutations identified in NOTCH1 were predicted to truncate the gene product, suggesting that NOTCH1 may function as a tumor suppressor gene rather than an oncogene in this tumor type. 相似文献
8.
Nishant Kambli Shantanu Basak Kartick K. Samanta Rajendra R. Deshmukh 《Fibers and Polymers》2016,17(5):687-694
A natural long staple ligno-cellulosic fibers have been extracted from the cornhusks using an alkali treatment. Physico-chemical properties such as chemical composition, length, fineness, crystallinity, surface properties, etc. measured by standard methods are reported in this paper. The physico-chemical and morphological properties of the extracted cornhusk fibers are discussed in detail and compared with other cellulosic like cotton and ligno-cellulosic fibers such as jute. Scanning electron microscopy was used to study the morphological and cross-sectional view and energy dispersive X-ray and FTIR were used for the identification and quantification of elements, groups present in the cornhusk and other cellulosic and lignocellulosic fibers. In addition, fibers are characterized by thermo-gravimetric analysis. Results showed that morphological and physico-chemical behavior is more or less similar to other multicellular ligno-cellulosic fibers like jute. 相似文献
9.
10.
Tiwari Rahul Kumar Bashyal Bishnu Maya Shanmugam V. Lal Milan Kumar Kumar Ravinder Sharma Sanjeev Naga Kailash Chandra Chourasia Kumar Nishant Aggarwal Rashmi 《植物病害和植物保护杂志》2022,129(1):173-179
Journal of Plant Diseases and Protection - Potato stands first as a non-cereal food crop for global consumption purposes. During the year 2019–20, dry rot disease symptoms were observed on... 相似文献
1